o-Benzenedisulfonimide as a reusable acid catalyst for an easy, efficient, and green synthesis of tetrahydroisoquinolines and tetrahydro-β-carbolines through Pictet–Spengler reaction
作者:Margherita Barbero、Stefano Bazzi、Silvano Cadamuro、Stefano Dughera
DOI:10.1016/j.tetlet.2010.09.149
日期:2010.12
tetrahydro-β-carbolines, using the Pictet–Spengler reaction, was carried out in the presence of a catalytic amount of o-benzenedisulfonimide, which worked as a Brønsted acid organocatalyst. The reaction conditions were mild and green and good target product yields were achieved. The catalyst was easily recovered and purified, ready to be used in further reactions with economic and ecological advantages.
使用Pictet-Spengler反应,在催化量的邻苯二磺酰亚胺的存在下进行四氢异喹啉和四氢β-咔啉的合成,该邻苯二磺酰亚胺用作布朗斯台德酸有机催化剂。反应条件温和绿色,并获得了良好的目标产物收率。该催化剂易于回收和纯化,准备用于经济和生态优势的进一步反应中。